Page 1 HS3 Series Series THREE-PHASE ALL-IN-ONE ENERGY STORAGE SYSTEM USER MANUAL HS3-(5K-13K)-T2-(W, G)-(B, P)
Page 2 We make constant improvements on the products and their documentation. This manual is subject to change without notice; these changes will be incorporated in new editions of the publication. To access the latest documentation, visit the SAJ website at https://www.saj-electric.com/.
Page 3 HS3 Series TABLE OF CONTENTS 1. SAFETY PRECAUTIONS ..........................................2 1.1. About this document....................................3 1.1.1. Overview ......................................... 3 1.1.2. Target audience ......................................3 1.2. Safety ..........................................3 1.2.1. Safety Levels ........................................3 1.2.2. Symbol Explanation ..................................... 4 1.2.3. Safety Instructions ....................................... 5 1.3.
Page 4 HS3 Series 2.5. LED Indicators on the HS3 Inverter..............................18 2.6. Datasheet ........................................20 2.6.1. System .......................................... 20 2.6.2. Battery Pack ........................................ 24 2.6.3. Battery Combiner Box ....................................24 2.6.4. Charger ........................................25 3. Transportation and Storage ........................................28 3.1.
Page 5 HS3 Series 5.2.5. Assembling the EMS Electrical Connection ............................87 5.2.6. Installing a Circuit Breaker ..................................88 5.2.7. Installing an RCD (optional) ................................... 88 5.2.8. Connecting the Smart Meter ................................. 88 5.2.9. Connecting the Grid and Backup Loads ............................. 88 5.2.10.
Page 6 HS3 Series...
Page 7 HS3 Series SAFETY PRECAUTIONS...
Page 8 SAJ system HS3-(5K-12K)-T2-(W, G)-(B, P) . It is a three-phase all-in-one energy storage system which includes the SAJ products listed in section 2.2.1 "Product models". Read the user manual carefully before any installation, operation and maintenance and follow the instructions during installation and operation.
Page 9 HS3 Series 1.2.2. Symbol explanation Symbol Description Danger: Electrical shock hazard This device is directly connected to public grid and thus all work to the battery shall only be carried out by qualified personnel. WARNING: No open flames Do not place or install near flammable or explosive materials.
Page 10 • Do not stay close to the equipment while there are severe weather conditions including storm, lighting, etc. • Before opening the housing, the SAJ inverter must be disconnected from the grid and PV generator; you must wait for at least five minutes to let the energy storage capacitors completely discharged after disconnecting from power source.
Page 11 • Disconnect the AC circuit breaker, or keep it disconnect if it is tripped, and secure it against reconnection. • The SAJ inverter must only be operated with the PV generator. Do not connect any other source of energy to the SAJ inverter.
Page 12 ⚫ Operate and use the battery properly according to the user manual. Any attempts to modify battery without the permission from SAJ will void the limit warranty for the battery. ⚫ The battery must be installed at a suitable location with sufficient ventilation.
Page 13 HS3 Series area where the battery pack is installed. Wear a gas mask and avoid inhaling toxic gases and harmful substances produced by the fire. ⚫ Use an ABC fire extinguisher, if the fire is not caused by battery and not spread to it yet.
Page 14 HS3 Series...
Page 15 HS3 Series PRODUCT INFORMATION...
Page 16 HS3 Series 2.1. General introduction The SAJ system HS3-(5K-12K)-T2-(W, G)-(B, P) contains at least one HS3 inverter and one BU3 battery pack. It is a single-phase all-in-one energy storage system which is applied to the residential photovoltaic energy storage system which stores the electricity for household future use.
Page 17 HS3 Series * BE indicates that this model is available in Belgium only. * IE indicates that this model is available in Ireland only. Battery ⚫ Equipment Basic model Professional model Battery BU3-5.0-TV1 BU3-5.0-TV1-PRO ⚫ ⚫ BU3-5.0-TV2 BU3-5.0-TV2-PRO ⚫ ⚫...
Page 18 HS3 Series BU3 - 5.0 - TVx - PRO - BASE BU3: Battery model series 5.0: The rated energy of the battery is 5.0 kWh. TVx: TV indicates a pack-level optimizer. x indicates the battery cell manufacturer. PRO: Professional model BASE: With a base 2.3.
Page 19 HS3 Series 2.3.2. BU3 battery pack ◼ Type A battery pack Battery pack with a base Figure 2.2. Dimension of the type A BU3 battery pack with a base Battery pack without a base Figure 2.3. Dimension of the type A BU3 battery pack without a base...
Page 20 HS3 Series ◼ Type B battery pack Battery pack with a base Figure 2.4. Dimension of the type B BU3 battery pack with a base Battery pack without a base Dimension of the type B BU3 battery pack without a base...
Page 21 HS3 Series 2.3.3. BC3 battery combiner box Dimension (mm): 150*695*170 Figure 2.5. BC3 battery combiner box dimension 2.3.4. CU2 charger Dimension (mm): 160*695*170 Figure 2.6. CU2 charger dimension...
Page 22 HS3 Series 2.4. Ports, switches, and LED on the HS3 inverter Figure 2.7. Ports, switches, and LED on the HS3 inverter Callout Silkscreen Description SIM CARD SIM card slot Only available when a 4G module is embedded in the inverter.
Page 23 HS3 Series BMS CAN Battery communication port Grounding port START Start button DC SWITCH Switch for controlling the DC input BATTERY SWITCH Switch for controlling battery power input and output Table 2.1. Description of the HS3 ports, switches, and LED 2.5.
Page 24 HS3 Series Solid on The battery is working properly. On 1s, off 1s The battery is not working properly. The battery is disconnected or inactive. BATTERY Solid on The grid is connected and working properly. On 1s, off 1s The grid is not working properly.
Page 25 HS3 Series 2.6. Datasheet 2.6.1. System Notes: W=Wi-Fi B=Basic model P=Professional model IE=Ireland (This model is applicable to Ireland ONLY.) BE= Belgium (This model is applicable to Belgium ONLY.) HS3-10K-T2-(W, G)- HS3-12K-T2-(W, G)- Model HS3-5K-T2-(W, HS3-6K-T2-(W, HS3-8K-T2-(W, (B, P) , HS3-10K-T2-...
Page 26 HS3 Series HS3-10K-T2-(W, G)- HS3-12K-T2-(W, G)- Model HS3-5K-T2-(W, HS3-6K-T2-(W, HS3-8K-T2-(W, (B, P) , HS3-10K-T2- (B, P) HS3-12K-T2- G)-(B, P) G)-(B, P) G)-(B, P) Parameter (W, G)-(B, P) (W, G)-(B, P) AC Output [On-grid] ⚫ 12000 Rated AC Power [W] 5000...
Page 27 HS3 Series HS3-10K-T2-(W, G)- HS3-12K-T2-(W, G)- Model HS3-5K-T2-(W, HS3-6K-T2-(W, HS3-8K-T2-(W, (B, P) , HS3-10K-T2- (B, P) HS3-12K-T2- G)-(B, P) G)-(B, P) G)-(B, P) Parameter (W, G)-(B, P) (W, G)-(B, P) ⚫ 11000 ⚫ 12000 Max. Apparent Power [VA] 5500 6600 8800 ⚫...
Page 28 HS3 Series HS3-10K-T2-(W, G)- HS3-12K-T2-(W, G)- Model HS3-5K-T2-(W, HS3-6K-T2-(W, HS3-8K-T2-(W, (B, P) , HS3-10K-T2- (B, P) HS3-12K-T2- G)-(B, P) G)-(B, P) G)-(B, P) Parameter (W, G)-(B, P) (W, G)-(B, P) Battery Connection Quick connector Display LED + App ⚫ Bluetooth (Bluetooth low energy, BLE) Communication ⚫...
Page 29 HS3 Series 2.6.2. Battery pack Model BU3-5.0-(TV1, TV2), BU3-5.0-(TV1, TV2)-PRO, Parameter BU3-5.0-(TV1, TV2)-BASE BU3-5.0-(TV1, TV2)-PRO-BASE Rated Capacity [Ah] Rated Energy [kWh] Usable Energy [kWh] ⚫ With the base: 420*695*170 Dimension (H*W*D) [mm] ⚫ Without the base: 370*695*170 ⚫ With the base: 53 Weight [kg] ⚫...
Page 30 HS3 Series 2.6.4. Charger Model CU2-11K-T-I Parameter Input Power supply 3+N+PE Rated Voltage [V AC] 230/400, ± 20% Rated Current [A] Frequency [Hz] 50/60 Output Output Voltage [V AC] 400, ± 20% Max. Current [A] Output Power [kW] Power Consumption (standby) [W]...
Page 31 HS3 Series ⚫ Surge protection Over/Under voltage protection ⚫ ⚫ Over/Under frequency protection ⚫ Over temperature protection Certification ⚫ EN IEC 61851-1: 2019 ⚫ IEC 62955: 2018 EN IEC 61851-21-2: 2021 ⚫ ⚫ EN 61000-6-1: 2019 EN 61000-6-3: 2021 ⚫...
Page 32 HS3 Series...
Page 33 HS3 Series TRANSPORTATION AND STORAGE...
Page 34 HS3 Series 3.1. Transportation DANGER Load or unload batteries with caution. Otherwise, the batteries may be short-circuited or damaged (such as leakage and crack), catch fire, or explode. ⚫ Batteries have passed the test of UN38.3. This product meets the transportation requirements for dangerous goods for lithium batteries.
Page 35 The battery cannot be disposed of as household refuse. When the service life of the battery reaches to the limit, it is not required to return it to the dealer or SAJ, but it must be recycled to the special...
Page 36 HS3 Series...
Page 37 HS3 Series INSTALLATION...
Page 38 HS3 Series 4.1. Precautions For safety, be sure to read all the safety instructions carefully prior to any works and observe the appropriate rules and regulations of the country or region where you installed the energy storage system. DANGER •...
Page 39 HS3 Series ⚫ Keep the device from water sources such as taps, sewer pipes and sprinklers to prevent water seepage. ⚫ The product is to be installed in a high traffic area where the fault is likely to be seen.
Page 40 HS3 Series In some restricted conditions, the allowable backward-tilted angle must not be greater than 3 degrees, and the allowable side-tilted angle must not be greater than 2 degrees. Figure 4.3. Installation angle Choose a solid and smooth wall to ensure that the inverter can be installed securely on the wall.
Page 41 HS3 Series 4.3. Preparing installation tools The tools illustrations are for your reference. Installation tools include but are not limited to the following recommended ones. Use other auxiliary tools based on site requirements. Multimeter Measurement Utility knife Marker Measuring tape...
Page 42 4.4. Unpacking 4.4.1. Check the outer packing Although SAJ’s products have thoroughly tested and checked before delivery, there is possibility that the products may suffer damages during transportation. Check the outer packing package for any damage, such as holes and cracks.
Page 43 HS3 Series The waterproof cover is only available in some configurations. The printed documents include a warranty card, a Quick Guide , and a Configuration Instructions The meter kit contains the following items: Communication cable with an RJ45 connector Current transformer Smart meter ◼...
Page 44 HS3 Series M5*14 screw x4 ◼ Package of type B BU3 battery pack Type B battery pack has two mounting ears on the rear cover. Battery pack with a base (BU3-5.0-(TV1, TV2)-BASE or BU3-5.0-(TV1, TV2)-PRO-BASE) ⚫ M6*50 screw x2 Battery module...
Page 45 HS3 Series ◼ Wall-mounting bracket This is an optional package, depending on your system configuration. M5*14 screw x2 Mounting bracket M12*100 expansion bolt x6 ◼ BC3 Battery Junction Box Package This is an optional package, depending on your system configuration.
Page 46 HS3 Series M5*14 screw x2 M4*12 screw x2 Grounding plate (For Australia) (For Australia) 4.5. Installation Depending on your order, you will receive either type A or type B battery pack. Type A: With two holes on left and right sides...
Page 47 HS3 Series Figure 4.6. Marking and drilling holes on the wall...
Page 48 HS3 Series Use two M5*14 screws to install two locking brackets on the left and right sides of the battery pack. On the desired installation site, place the base battery on the floor. Make sure that: The left and right battery bases are aligned with the vertical black lines on the cardboard.
Page 49 HS3 Series On the left and right upper sides of the battery pack, align the locking brackets to the drill holes and install M6*50 screws to secure the locking brackets to the wall. Note: If the battery is installed outdoors, it is suggested to remove the cardboard which is not waterproof.
Page 50 HS3 Series Step 2. (Optional) Install other batteries (BU3-5.0-(TV1, TV2) or BU3-5.0-(TV1, TV2)-PRO). Note: In one stack, up to three batteries are supported. Use two M5*14 screws to install two locking brackets on the left and right sides of the battery pack.
Page 51 HS3 Series On the left and right upper sides of the battery pack, align the locking brackets to the drilled holes and install the gaskets and M6*50 screws to secure the battery pack to the wall. On the left and right bottom sides of the battery pack: Install two M5*14 screws to secure two batteries.
Page 52 HS3 Series (Optional) If needed, repeat steps a and b to install the third battery. M6*50 M6*50 5 N· m 5 N· m M5*14 M5*14 2.5 N· m 2.5 N· m Figure 4.11. Installing the third battery...
Page 53 HS3 Series Step 3. (Optional) Install the charger (CU2-7.4K-S-I). Get the holster from the charger package. Install the holster onto the right side of the charger. Place the charger onto the battery. Push it downwards. Install M5*14 screws on both lower sides of the charger to secure the charger to the battery.
Page 54 Install the holster on the wall by using three M4*32 screws. Note: The holster is used to secure the charger cable. You can connect the cable after all installation is completed. It is recommended that you purchase the cable from SAJ. M4*32 5 N·...
Page 55 Notes: ⚫ It is recommended that you connect the cable after all device installation is completed. It is recommended that you purchase the cable from SAJ. ⚫ For a long cable, you can wrap the cable on the holster. ⚫...
Page 56 HS3 Series Step 4. Install the inverter (HS3- k-T2-W-B, HS3- K-T2-W-P, HS3- k-T2-G-B, or HS3- K-T2-G-P). (Optional) If you have installed a charger, loosen the screws on the inverter, and remove the port cover, as shown below: Place the inverter onto the battery or charger (if available) and push it downwards. Install screws on both lower sides of the inverter to secure the inverter to the beneath device (battery or charger;...
Page 57 HS3 Series Installation completion view Single stack: supporting 1 to 3 batteries Example of 3 batteries: Inverter + charger + batteries Inverter + batteries Figure 4.16. Completion view of a single stack 4.5.2. Type B battery pack: ground mounting manner Before you start Make sure that the ground should be flat and no inclination.
Page 58 HS3 Series Figure 4.17. Marking and drilling holes on the wall...
Page 59 HS3 Series Use two M5*14 screws to install two locking brackets to the mounting ears on the top of the battery pack. On the desired installation site, place the base battery on the floor. Make sure that: The left and right battery bases are aligned with the vertical black lines on the cardboard.
Page 60 HS3 Series On the top of the battery pack, align the locking brackets to the drilled holes and install M6*50 screws to secure the locking brackets to the wall. Note: If the battery is installed outdoors, it is suggested to remove the cardboard which is not waterproof.
Page 61 HS3 Series Step 2. (Optional) Install other batteries (BU3-5.0-(TV1, TV2) or BU3-5.0-(TV1, TV2)-PRO). Note: In one stack, up to three batteries are supported. Use two M5*14 screws to install two locking brackets to the mounting ears on the top of the battery pack.
Page 62 HS3 Series On the top of the battery pack, align the locking brackets to the drilled holes and install the gaskets and M6*50 screws to secure the battery pack to the wall. On the left and right bottom sides of the battery pack, install M5*14 screws to secure two batteries.
Page 63 HS3 Series (Optional) If needed, repeat steps a and b to install the third battery. Australia only: Install the metal grounding plate and secure it by installing two M4*12 screws. M6*50 5 N· m M5*14 2.5 N· m M5*14 2.5 N· m M4*12 1.2 N·...
Page 64 HS3 Series Step 3. (Optional) Install the charger (CU2-7.4K-S-I). Get the holster from the charger package. Install the holster onto the right side of the charger. Place the charger onto the battery. Push it downwards. On the left and right bottom sides, install M5*14 screws to secure the charger to the battery.
Page 65 Install the holster on the wall by using three M4*32 screws. Note: The holster is used to the charger cable. You can connect the cable after all installation is completed. It is recommended that you purchase the cable from SAJ. M4*32 5 N·...
Page 66 Notes: ⚫ It is recommended that you connect the cable after all device installation is completed. It is recommended that you purchase the cable from SAJ. ⚫ For a long cable, you can wrap the cable on the holster. ⚫...
Page 67 HS3 Series Step 4. Install the inverter (HS3- k-T2-W-B, HS3- K-T2-W-P, HS3- k-T2-G-B, or HS3- K-T2-G-P). (Optional) If you have installed a charger, loosen the screws on the inverter, and remove the port cover, as shown below: Place the inverter onto the battery or charger (if available) and push it downwards. On the left and right bottom sides of the inverter, install M5*14 screws to secure the inverter to the beneath device.
Page 68 HS3 Series Installation completion view Single stack: supporting 1 to 3 batteries Example of 3 batteries: Inverter + charger + batteries Inverter + batteries Figure 4.27. Completion view of a single stack...
Page 69 HS3 Series 4.5.3. Type B battery pack: wall mounting manner Before you start Make sure that the wall can bear the weight of the inverter and accessories. Procedure Step 1. Install the wall-mounting bracket. Place the mounting bracket onto the wall. Mark six holes. Remove the bracket.
Page 70 HS3 Series Install the mounting bracket on to the wall. Figure 4.30. Installing the mounting bracket Step 1. Install the base battery (BU3-5.0-(TV1, TV2)-BASE or BU3-5.0-(TV1, TV2)-PRO-BASE). Get the cardboard from the base battery package. Place the cardboard onto the wall and align the vertical lines on the cardboard with the bracket edges.
Page 71 HS3 Series Drill six holes (8mm in diameter and 55mm in depth) on the marked positions on the cardboard. Install the provided expansion bolts into the drilled holes. Figure 4.32. Drilling holes Figure 4.33. Installing expansion bolts...
Page 72 HS3 Series Use two M5*14 screws to install two locking brackets to the mounting ears on the top of the battery pack. Place the base battery onto the floor. Make sure that: The battery feet are aligned with the vertical black line on the cardboard.
Page 73 HS3 Series On the top of the battery pack, align the locking brackets to the drilled holes and install M6*50 screws to secure the locking brackets to the wall. Secure battery to the bracket by tightening two M6*14 screws. Note: If the battery is installed outdoors, it is suggested to remove the cardboard which is not waterproof.
Page 74 HS3 Series Step 2. Install other batteries (BU3-5.0-(TV1, TV2) or BU3-5.0-(TV1, TV2)-PRO). Note: In one stack, up to three batteries are supported. Use two M5*14 screws to install two locking brackets to the mounting ears on the top of the battery pack.
Page 75 HS3 Series On the top of the battery pack, align the locking brackets to the drilled holes and install the gaskets and M6*50 screws to secure the battery pack to the wall. On the left and right bottom sides of the battery pack, install M5*14 screws to secure two batteries.
Page 76 HS3 Series (Optional) If needed, repeat steps a and b to install the third battery. Australia only: Install the metal grounding plate and secure it by installing two M4*12 screws. M6*50 5 N· m M5*14 2.5 N· m M5*14 2.5 N· m M4*12 1.2 N·...
Page 77 HS3 Series Step 3. (Optional) Install the charger (CU2-7.4K-S-I). Get the holster from the charger package. Install the holster onto the right side of the charger. Place the charger onto the battery. Push it downwards. On the left and right bottom sides of the battery pack, install M5*14 screws to secure the charger to the battery.
Page 78 Install the holster on the wall by using three M4*32 screws. Note: The holster is used to secure the charger cable. It is recommended that you purchase the cable from SAJ and connect the cable after all devices are installed. M4*32 5 N·...
Page 79 Notes: It is recommended that you connect the cable after all device installation is completed. ⚫ It is recommended that you purchase the cable from SAJ. ⚫ ⚫ For a long cable, you can wrap the cable on the holster.
Page 80 HS3 Series Step 4. Install the inverter (HS3- k-T2-W-B, HS3- K-T2-W-P, HS3- k-T2-G-B, or HS3- K-T2-G-P). Place the inverter onto the battery or charger (if available) and push it downwards. On the left and right bottom sides of the battery pack, install M5*14 screws to secure the inverter to the beneath device (battery or charger;...
Page 81 HS3 Series Installation completion view Single stack: supporting 1 to 3 batteries Example of 3 batteries: Inverter + charger + batteries Inverter + batteries 比例 1.000 Figure 4.43. Completion view of a single stack...
Page 82 HS3 Series 4.5.4. Installation of multiple battery stacks (optional) About this task An inverter can support up to eight batteries; however, for safety reason, up to three batteries can be installed vertically in one stack. The extra batteries must be installed in other stack(s) and the extra battery stack must be installed with a battery combiner box (BC3-TV).
Page 83 HS3 Series Step 2. Depending on the battery type, perform as follows: ⚫ Type A battery pack: Install screws on both lower sides of the junction box to secure the junction box to the beneath battery. M5*14 2.5 N· m Figure 4.45.
Page 84 HS3 Series ⚫ Type B battery pack: Type B battery pack: Install screws on both lower sides of the junction box to secure the junction box to the beneath battery. Australia only: Install the metal grounding plate and secure it by installing two M4*12 screws M5*14 2.5 N·...
Page 85 HS3 Series Installation completion view Multiple battery stacks: supporting 4 to 8 batteries Take eight batteries as an example. Quantities of the batteries in different stacks are 2, 3, and 3, as shown below. The distance between each stack is 0.5 meter.
Page 86 HS3 Series ELECTRICAL CONNECTION...
Page 87 HS3 Series 5.1. Safety instructions Electrical connection must only be operated on by professional technicians. Operators must be aware that the inverter is a bi-power supply equipment. Before connection, necessary protective equipment must be employed by technicians including insulating gloves, insulating shoes, and safety helmet.
Page 88 HS3 Series 5.2. Assemble the AC-side connection 5.2.1. Open the AC-side cover Loosen the screw that locks the cover. Then, lift the cover upwards. Figure 5.1. Opening the AC-side cover Figure 5.2. After the AC-side cover is opened...
Page 89 HS3 Series 5.2.2. Connect the grounding cable About this task This additional grounding cable must be connected before other electrical connection. You can connect the grounding cable to the grounding point on either AC-side or DC side. Here takes the grounding point on the AC-side as an example.
Page 90 HS3 Series 5.2.3. Install the SIM card (optional) Only the 4G model provides the SIM card slot. Loosen the cover of the SIM card slot. Then, insert the SIM card to the slot. Figure 5.5. Loosening the cover on the SIM card slot...
Page 91 HS3 Series 5.2.4. Assemble the LAN electrical connection (optional) About this task Only the W (Wi-Fi) model provides the LAN port. If you choose to use Wi-Fi connection manner or has an EMS connected in the ESS, no need to connect the LAN cable.
Page 92 Step 2. Use a standard RJ45 cable. Insert the cable through the cable fastener as shown below. Assembly the cable fastener. Figure 5.9. Preparing the EMS cable Step 3. Connect the cable from the EMS port on the inverter to the LAN port on SAJ eManager (EMS). Figure 5.10. Connecting the EMS cable...
Page 93 5.2.8. Connect the smart meter To buy a smart meter, contact SAJ for more details. By using a SAJ-recommended smart meter, many functions can be implemented, such as the export limitation function. Connect the smart meter as shown in section 5.6 “System connection diagram”.
Page 94 HS3 Series Conductor cross-sectional area of cables Conductor material Scope Recommended value Copper 4–6 mm² or 12–10 AWG 6 mm² or 10 AWG Note the required cable diameter of different rubber plugs. Rubber plug Hole diameter One-hole plug (in the connector) 14–17.5 mm...
Page 95 HS3 Series Figure 5.11. Preparing the cable...
Page 96 HS3 Series Step 3. Remove the dustproof covers from the GRID and BACK-UP ports. Use a flathead screwdriver to press down the tab in the cover. Rotate the cover anti-clockwise and pull it upwards. Step 4. Connect the grid cable to the GRID and BACKUP ports on the inverter.
Page 97 HS3 Series 5.2.10. Assemble the communication connection Step 1. Disassemble the communication cable connector. ① Press the tabs on two sides of the connector by one hand and press the front ends of the terminal by another hand. Pull the connection terminal block outwards.
Page 98 HS3 Series Figure 5.14. Installing the insulated crimp terminals on the cable ends Step 3. Insert all communication cables through the nut, seals, and body of the connector. Figure 5.15. Inserting the cables through the connector Step 4. Locate the ports and terminals on the connection terminal block according to their silkscreens.
Page 99 HS3 Series 4: DRM4/8 For RCR 5: REF D/0 6: COM D/0 7: NC 8: NC Terminals DO1+ Dry output 1 DO1- Dry output 1 DO2+ Dry output 2 DO2- Dry output 2 RS485-A For external RS485 (with a 120 Ω resistor)
Page 100 HS3 Series ⑤ ② ④ ① ③ Figure 5.16. Assembling the connector Step 6. Connect the assembled communication terminal connector to the COMM port on the inverter. Figure 5.17. Connecting the connector to the inverter...
Page 101 HS3 Series Step 7. Connect the other end of the cables to external devices, such as the meter. Note: For meter connection, use the communication cable (A) provided in the meter kit package. Connect the RJ45 connector on one end to the RJ45 port of the meter communication cable (B) that you have just connected to MET_A and MET_B on the communication terminal connector.
Page 102 HS3 Series 5.2.11. Close the AC-side cover Push the cover downwards. Use a screwdriver to tighten the screw to lock the cover securely. Figure 5.19. Closing the AC-side cover Figure 5.20. Securing the screw...
Page 103 HS3 Series 5.3. Assemble the DC-side connection 5.3.1. Open the DC-side cover Loosen the screw that locks the cover. Then, lift the cover upwards. Figure 5.21. Opening the DC-side cover Figure 5.22. After the DC-side cover is opened...
Page 104 HS3 Series 5.3.2. Connect the PV cables About this task Read the safety instructions first before operations. ⚫ DANGER · Dangerous to life due to electric shock when live components or DC cables are touched. · The PV panel string will produce lethal high voltage when exposed to sunlight. Touching live DC cables results in death or lethal injures.
Page 105 HS3 Series Verify that the DC switch on the inverter is in OFF position to avoid short circuit caused by ⚫ maloperations. Figure 5.24. DC switch in OFF position (For Australia) To comply with local regulations and for further safety consideration, use a reliable tool (such as a lock with a key) to lock the switch, so that others cannot unlock it easily.
Page 106 HS3 Series Figure 5.26. Assembling the cable ends Step 3. Insert the assembled cable ends into the blue positive and negative connectors. Gently pull the cables backwards to ensure firm connection. Figure 5.27. Assembling the positive and negative cables Step 4. Tighten the lock screws on the positive and negative cable connectors.
Page 107 HS3 Series Figure 5.29. Connecting the PV cables 5.3.3. Connecting the battery cables between multiple stacks (optional) About this task This task is only applicable to the scenario in which four to eight batteries are connected to one inverter. On top of the first stack, an inverter is installed; while in the top of other stacks, a battery combiner box has been installed on top of the stack.
Page 108 HS3 Series Prerequisite For the battery stack without an inverter, a battery combiner box (BC3-TV) has been installed on top of the stack. Procedure Step 1. Prepare and connect the grounding cable to the battery combiner box. Step 2. Use the provided positive and negative power cables and the communication cable. Connect the...
Page 109 HS3 Series ⚫ The provided cables have been assembled with connectors. In some special cases, if you need to use your own cables, contact SAJ for technical support. Taking eight batteries connecting to one inverter as an example: BAT+ BAT-...
Page 110 HS3 Series 5.3.4. Close the DC-side cover Push the cover downwards. Use a screwdriver to tighten the screw to lock the cover securely. Figure 5.31. Closing the DC-side cover 5.4. Earth fault alarm This inverter complies with IEC 62109-2 clause 13.9 for earth fault alarm monitoring. If an earth fault alarm occurs, the ring light on the inverter LED panel will be lit up in red and an error code <31>...
Page 111 HS3 Series 5.5. System connection For Australia and New Zealand, the system connection is as below: Notes: For safety, the neutral cable of AC and backup side must be connected together. ⚫ DO NOT connect the PE terminal of the BACKUP side.
Page 112 HS3 Series The system connection for the grid system without special requirements is as below: Note: The backup PE line and earthing bar must be grounded properly. Otherwise, the backup function may be inactive during blackout. Figure 5.33. System connection in other countries and regions...
Page 113 HS3 Series 5.6. System connection diagram If the length of the RS485 cable between the inverter and the meter exceeds 20 meters, connect a 120Ω resistor to ports 24 and 25 on the meter. One HS3 ⚫ CT wire 250A meter...
Page 114 HS3 Series Configuration Instructions ⚫ For other scenarios, refer to Chapter 4 “System Connection: Three-phase hybrid inverter” in the Multiple HS3 (parallelling scenario) One HS3 working with a solar inverter (AC coupling scenario) Multiple HS3 working with a solar inverter (AC coupling + parallelling scenario)
Page 115 HS3 Series...
Page 116 HS3 Series STARTUP AND SHUTDOWN...
Page 117 HS3 Series 6.1. Startup Step 1. (Optional) If there are multiple battery stacks, turn on the battery switch on the right side of the battery combiner box. Step 2. On the left side of the inverter, perform as follows: Turn on BATTERY SWITCH.
Page 118 HS3 Series COMMISSIONING...
Page 119 HS3 Series 7.1. About the Elekeeper App The Elekeeper App can be used for both nearby and remote monitoring. Depending on the communication module used, it supports Bluetooth/4G or Bluetooth/Wi-Fi to communicate with your energy storage system (ESS). 7.2. Download the App On your mobile phone, search for “Elekeeper”...
Page 120 HS3 Series TROUBLESHOOTING...
Page 121 HS3 Series For any errors reported as below, contact the after-sales for service support. The operations and maintenance must be performed by authorized technicians. Error code Error message Master Relay Error Master EEPROM Error Master Temperature High Error Master Temperature Low Error Master Lost Communication M<->S...
Page 122 HS3 Series Error code Error message Master ISO Error Master Bus Voltage Balance Error Master Bus Voltage High Master Bus Voltage Low Master Grid Phase Error Master PV Voltage High Error Master Islanding Error Master HW Bus Voltage High Master HW PV Current High...
Page 123 HS3 Series Error code Error message DRM0 Error Master Arc Error Master SW PV Current High Master Battery Voltage High Master Battery Current High Master Battery Charge Voltage High Master Battery OverLoad Master Battery SoftConnet TimeOut Master Output OverLoad Master Battery Open Circuit Error...
Page 124 HS3 Series Error code Error message Circuit Breaker Is Open Temperature Difference Is Too Wide Voltage Difference Is Too Wide Voltage Difference Is Too Wide BMS Over Temperature Protect Short Circuit Protect Total voltage match failed The system is locked...
Page 125 HS3 Series Error code Error message Auxiliary Power Source Fault Hardware Protection Signal Fault Bus Voltage Differential Fault BMS Protection Signal Fault Software Resonant Chamber Overcurrent Fault Soft Start Abnormal Fault Heatsink High Temperature Fault Heatsink Low Temperature Fault PCB High Temperature Fault...
Page 126 HS3 Series Error code Error message Grounding error Phase twisted RCD circuit exception RS485 Com time out Electricity exception Meter fault cp exception,cp lower than 2V Connector lock exception Connector current exception DC residual current exception C...
Page 127 HS3 Series...
Page 128 HS3 Series APPENDIX...
Page 129 Check the product warranty conditions and terms on the SAJ website: https://www.saj-electric.com/ 9.3. Contacting support Guangzhou Sanjing Electric Co., Ltd. Address: SAJ Innovation Park, No.9, Lizhishan Road, Guangzhou Science City, Guangdong, P.R.China. Postcode: 510663 Website: https://www.saj-electric.com/ Technical Support & Service...
Page 130 HS3 Series GUANGZHOU SANJING ELECTRIC CO.,LTD Tel: (86)20 66608588 Fax: (86)20 66608589 Web: www.saj-electric.com Add: SAJ Innovation Park,No.9, Lizhishan Road, Science City, Guangzhou High-tech Zone , Guangdong, P.R.China...

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